<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>背景样式2</title>
    <style>
        .box1{
            width: 500px;
            height: 500px;
            background-color: #bfa;
            background-image: url("img/dahuangmao-17.png");
            background-repeat: no-repeat;
            background-position: 50px 50px;
            border: 6px red double;
            padding: 10px;
            background-clip:content-box;
            background-size: 30px auto;
            background-attachment: scroll;
        }
    </style>
</head>
<body>
    <div class="box1"></div>
</body>
</html>